On Thursday, virtualization softare maker VMWare released version 4.0.2 of its Fusion software for the Mac.

Similar to other virtualization software packages, VMWare allows users to run alternate operating systems such as Windows and Linux distributions on Intel-based Macs at native speeds. Other features, such as Unity, allow users to run and minimize Windows applications from the Mac OS X Dock.

On Wednesday, software company Delicious Monster released version 2.7.1 of the shareware favorite, Delicious Library. Delicious Monster allows Macs with webcams to scan the bar codes of any book, movie, music CD or video game, then creates an archive based on background information from the Internet. Additional features help keep the library organized and reseller’s tools allow for items to be quickly posted for sale online.

The update, a 16.4 megabyte download, adds the following fixes and changes:

Maybe it’s a good thing that the software patch arrived before the actual units did. On Friday, Apple released Thunderbolt Software Update 1.0, a 60.3 megabyte download that provides support for the Apple Thunderbolt Display and bug fixes for Thunderbolt device compatibility.

The update should also be available via Mac OS X’s Software update feature and requires Mac OS X 10.7.1 to install and run.

If you’ve received your Apple Thunderbolt Display yet and tried the update with it, please let us know what you make of it via the comments.

– Improved compatibility with FaceTime HD camera and other USB devices for virtual machines with more than 2 GB of memory.

– Resolves a problem with Mac slow boot time.

Parallels Desktop 7 retails for US$79.99 and requires a 64-bit Intel-based processor, Mac OS X 10.5.8 or later, 2GB of RAM (4GB recommended to run Windows 7), at least 700 MB of space available on the boot volume for Parallels Desktop installation and 15 GB of available disk space for Windows.

If you’ve tried the new version and have any feedback to offer, let us know in the comments.

Michael Tsai’s must-have shareware program, SpamSieve, has just been updated to version 2.8.7. The new version, an 8.5 megabyte download, adds the following fixes and improvements, as listed here.

SpamSieve is available for a US$30 registration fee and requires Mac OS X 10.4 or later to run. The new version can either be downloaded directly from the web site or brought up to the current version via the program’s built-in update feature.

If you’ve tried the new version and have any feedback to offer, let us know in the comments.